<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        html, body {
            height: 562px;
            width: 1000px;
            margin: 0;
            overflow: hidden;
        }
        #app{
            width: 1555px;
            height: 1000px;
            position: relative;
        }
        #if{
            width:100%;
            height:100%;
            margin-left: -235px;
            margin-top: -130px;
            border: none;
        }
        #cover{
            width: 100%;
            height: 100%;
            background-color: yellow;
        }
        .right {
            position: absolute;
            height: 100%;
            width: 320px;
            right: 235px;
            top: 0;
            z-index: 10;
            background-color: #fff;
        }
        .bottom {
            position: absolute;
            width: 100%;
            height: 1000px;
            background: #fff;
            top: 560px;
        }
    </style>
</head>

<body>
<div id="app">

    <iframe id="if" src="https://live.kuaishou.com/u/XRK508381981"></iframe>
    <div class="right"></div>
    <div class="bottom"></div>
</div>
</body>

</html>